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SUMMARY:A statistical emulator for HadCM3 - Rougier\, J (Bristol)
DTSTART:20101207T110000Z
DTEND:20101207T114000Z
UID:TALK28307@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:As part of the PalaeoQUMP project\, we would like to emulate H
 adCM3 North American Mid-Holocene summer temperature (MTWA) anomalies\, at
  the resolution of the simulator (3.75 by 2.5 degrees). This will allow us
  to calibrate the parameterisation of HadCM3 to palaeoclimate measurements
  at the gridcell level\, and to do continental-scale reconstructions based
  on these measurements.\n\nEmulation has been a major theme during this pr
 ogramme. In the broader field of Computer Experiments its utility is clear
 \, and its application to simulators with scalar outputs has now become st
 andard. However\, jointly emulating a large and structured collection of s
 imulator outputs\, such as a spatial field of climate quantities\, is much
  more challenging. During this programme we have made progress on both the
  principles of such an emulation\, notably the role of dimensional reducti
 on and of separability\, the computational aspects\, and also in building 
 an actual emulator for HadCM3.\n\nThis talk will focus on the practical as
 pects of building an emulator\, and show how our emulator can be used to l
 earn about HadCM3\, and to learn about the value of palaeoclimate measurem
 ents for parameter calibration. 
LOCATION:Seminar Room 1\, Newton Institute
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